Outdoor Accents post bases secure the post or column to concrete and are perfect for outdoor projects, such as pergolas, patio covers and other top-supported structures. These post bases feature a clean, simple design and provide ZMAX galvanization with black powder-coat for extra corrosion resistance. The post base includes a 1-in. standoff from the concrete to help avoid post-end rot from moisture. Part of the Avant Collection. Outdoor Accents® Avant Collection™ ZMAX®, Black Powder-Coated Post Base for 8×8 Rough (Pack of 4).